Display device portion with a graphical user interface showing an armored vehicle



The FIGURE is a front view of a display device portion with a graphical user interface showing an armored vehicle according to the new design.

The portion of a display device shown in broken lines and the features of the armored vehicle shown in finer-incremental broken lines in the drawing form no part of the claimed design. 

CLAIM The ornamental design for a display device portion with a graphical user interface showing an armored vehicle, as shown and described. 